by dr20t » Sat Jun 08, 2013 11:51 pm
So I've been fine tuning my base tune to try get it to run right
Closed loop maf scaling is pretty much spot on now
Pulled about 3 degrees of timing out of the high load timing ranges (on top of the 3-4 degrees Scott pulled out of my previous tune), and richened the mixture up in 2.5g/s plus range by 1.0 point across the board except 4.00g/s column (only added minor fuel here).
Point of this was to give me a very safe base from which to do some WOT runs to scale the maf for open loop, and then gradually tune for boost, timing, fuel then avcs. Disconnected hks evc to run wastegate pressure (21psi) and was hoping to work backward.
One thing I'm digging is the cel flash on fbkc - helped me diagnose minor fbkc at low load (pulled 2 degrees of timing so one incident of feedback knock, but no fine learning or rough correction so it was probably engine noise)
Hit a snag because the auto is slipping in third gear at wot from 4300rpm. Won't hold the power it just straight slips. Fourth gear is a little better but still slips at 5000rpm wot
Tried playing with dbw and throttle plate tables but still slips.
So no luck with it yet. Hopefully it relates to dbw tables and which I might get Matt to have a play with and weave his magic with the auto shit to try get it to lock up (for a fee of course)
Failing that, it looks like no full power until the spare box is built.
Mick